S-90935A133 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide Steel coating, extending service life in demanding industrial environments.
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time and tooling costs.
• Optimized for sheet metal applications with a maximum drilling thickness of 0.025", ensuring reliable performance in thin materials.
• Secure, slip-resistant fastening provided by the Phillips pan head design, allowing for high torque application and stable seating.
• Full threading and pointed tip enable quick starts and smooth penetration, minimizing material displacement and stress.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets global supply chain requirements.
• Precise compatibility with No. 44 drill bit (0.086" diameter) for accurate hole preparation and consistent fastening results.

Professional Applications & Engineering Value

These No. 4 Phillips pan head tapping screws are engineered to address common challenges in sheet metal fabrication, such as material cracking and loose fasteners. The thread forming (Type A/AB) technology displaces metal to create robust internal threads, eliminating the need for separate tapping operations and reducing assembly labor. Made from Black-Oxide Steel, they offer enhanced corrosion resistance, crucial for outdoor or humid industrial settings. The fully threaded design with a pointed tip ensures quick alignment and deep engagement, providing vibration-resistant holds in appliances, HVAC systems, and electronic enclosures. This combination of material durability and efficient installation makes them ideal for high-volume production lines where reliability and speed are paramount.

Specification Summary & Compliance

This product adheres to standard inch measurements with a thread diameter of 0.112" and 24 threads per inch, ensuring precise fits in pre-drilled holes. It meets common industrial specifications for tapping screw Type A/AB and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances. The right-hand threading and standard pan head profile align with widely accepted fastening practices for consistent performance across applications.